81843790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{28517}}^1$

素因数の和:28572

約数の個数: 32

約数和(自身を含む): 172476864

約数和(自身を除く): 90633074

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 28517, 57034, 142585, 199619, 285170, 399238, 998095, 1169197, 1996190, 2338394, 5845985, 8184379, 11691970, 16368758, 40921895, 81843790]

約数ペア:

[(1, 81843790), (2, 40921895), (5, 16368758), (7, 11691970), (10, 8184379), (14, 5845985), (35, 2338394), (41, 1996190), (70, 1169197), (82, 998095), (205, 399238), (287, 285170), (410, 199619), (574, 142585), (1435, 57034), (2870, 28517)]